Changeset 45c01a1 in mainline for uspace/drv/uhci-hcd/uhci_struct/transfer_descriptor.c

Timestamp:

2011-02-12T22:20:22Z (14 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

54d9058, bfe0eb5, d15809b4

Parents:

8f5b6561 (diff), 600733e (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

hcd reworked, communication is sent in packet batches, improves performance and atomicity

File:

• uspace/drv/uhci-hcd/uhci_struct/transfer_descriptor.c (modified) (1 diff)

uspace/drv/uhci-hcd/uhci_struct/transfer_descriptor.c

@@ -40 +40 @@
 void transfer_descriptor_init(transfer_descriptor_t *instance,
     int error_count, size_t size, bool toggle, bool isochronous,
-    usb_target_t target, int pid, void *buffer)
+    usb_target_t target, int pid, void *buffer, transfer_descriptor_t *next)
 {
         assert(instance);
 
-        instance->next = 0 | LINK_POINTER_TERMINATE_FLAG;
+        instance->next = 0
+            | LINK_POINTER_VERTICAL_FLAG
+            | ((next != NULL) ? addr_to_phys(next) : LINK_POINTER_TERMINATE_FLAG);
 
         instance->status = 0